Optical Illusions*
Just so you know, all you kids out there who have trouble spelling words:
I keep accidentally typing: "illustion" instead of "illusion" - and having to go back and correct it.
So we ALL make mistakes! I just wanted you to know.
|
Are the red lines straight or bent?
Move your mouse over the picture and check.
This is called the "Hering Illusion," because it was created in 1861 by psychologist Ewald Hering.
|
How does it work?
The lines pointing outward, like roads going far into the distance, trick your eye into seeing perspective. This makes the red lines, too, seem to "follow the roads." All optical illusions depend on your brain to process the "trick" as something it EXPECTS to see, not what is really there.
Here's an example:
Here's an illustration of perspective, using the Hering Illusion itself. We observe perspective when we see closer objects as bigger, and further objects as smaller.
|
